зеркало из https://github.com/mozilla/gecko-dev.git
129 строки
3.5 KiB
C++
129 строки
3.5 KiB
C++
/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
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/* vim: set sw=2 ts=2 et tw=80 : */
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/* ***** BEGIN LICENSE BLOCK *****
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* Version: MPL 1.1/GPL 2.0/LGPL 2.1
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*
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* The contents of this file are subject to the Mozilla Public License Version
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* 1.1 (the "License"); you may not use this file except in compliance with
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* the License. You may obtain a copy of the License at
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* http://www.mozilla.org/MPL/
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*
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* Software distributed under the License is distributed on an "AS IS" basis,
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* WITHOUT WARRANTY OF ANY KIND, either express or implied. See the License
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* for the specific language governing rights and limitations under the
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* License.
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*
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* The Original Code is Mozilla Audio IPC
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*
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* The Initial Developer of the Original Code is
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* The Mozilla Foundation.
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* Portions created by the Initial Developer are Copyright (C) 2010
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* the Initial Developer. All Rights Reserved.
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*
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* Contributor(s):
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* Doug Turner <dougt@mozilla.com>
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*
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* Alternatively, the contents of this file may be used under the terms of
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* either the GNU General Public License Version 2 or later (the "GPL"), or
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* the GNU Lesser General Public License Version 2.1 or later (the "LGPL"),
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* in which case the provisions of the GPL or the LGPL are applicable instead
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* of those above. If you wish to allow use of your version of this file only
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* under the terms of either the GPL or the LGPL, and not to allow others to
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* use your version of this file under the terms of the MPL, indicate your
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* decision by deleting the provisions above and replace them with the notice
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* and other provisions required by the GPL or the LGPL. If you do not delete
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* the provisions above, a recipient may use your version of this file under
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* the terms of any one of the MPL, the GPL or the LGPL.
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*
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* ***** END LICENSE BLOCK ***** */
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#include "mozilla/dom/AudioChild.h"
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namespace mozilla {
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namespace dom {
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NS_IMPL_THREADSAFE_ADDREF(AudioChild);
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NS_IMPL_THREADSAFE_RELEASE(AudioChild);
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AudioChild::AudioChild()
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: mLastSampleOffset(-1),
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mLastSampleOffsetTime(0),
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mMinWriteSample(-2),// Initial value, -2, error on -1
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mAudioReentrantMonitor("AudioChild.mReentrantMonitor"),
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mIPCOpen(PR_TRUE),
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mDrained(PR_FALSE)
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{
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MOZ_COUNT_CTOR(AudioChild);
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}
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AudioChild::~AudioChild()
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{
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MOZ_COUNT_DTOR(AudioChild);
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}
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void
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AudioChild::ActorDestroy(ActorDestroyReason aWhy)
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{
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mIPCOpen = PR_FALSE;
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}
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bool
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AudioChild::RecvSampleOffsetUpdate(const PRInt64& offset,
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const PRInt64& time)
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{
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mLastSampleOffset = offset;
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mLastSampleOffsetTime = time;
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return true;
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}
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bool
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AudioChild::RecvDrainDone()
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{
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ReentrantMonitorAutoEnter mon(mAudioReentrantMonitor);
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mDrained = PR_TRUE;
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mAudioReentrantMonitor.NotifyAll();
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return true;
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}
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PRInt32
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AudioChild::WaitForMinWriteSample()
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{
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ReentrantMonitorAutoEnter mon(mAudioReentrantMonitor);
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// -2 : initial value
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while (mMinWriteSample == -2 && mIPCOpen)
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mAudioReentrantMonitor.Wait();
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return mMinWriteSample;
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}
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bool
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AudioChild::RecvMinWriteSampleDone(const PRInt32& minSamples)
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{
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ReentrantMonitorAutoEnter mon(mAudioReentrantMonitor);
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mMinWriteSample = minSamples;
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mAudioReentrantMonitor.NotifyAll();
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return true;
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}
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void
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AudioChild::WaitForDrain()
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{
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ReentrantMonitorAutoEnter mon(mAudioReentrantMonitor);
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while (!mDrained && mIPCOpen) {
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mAudioReentrantMonitor.Wait();
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}
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}
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PRInt64
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AudioChild::GetLastKnownSampleOffset()
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{
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return mLastSampleOffset;
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}
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PRInt64
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AudioChild::GetLastKnownSampleOffsetTime()
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{
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return mLastSampleOffsetTime;
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}
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} // namespace dom
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} // namespace mozilla
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